Pope Francis will also hold a mass at Geneva's Palexpo convention centre at 5.30pm. Palexpo said the event was full, with 41,000 people having registered their attention to come to the mass – the vast majority of them from French-speaking Switzerland.

Extra trains have been put on for people coming to Geneva for the mass while pilgrims began arriving many hours before the event itself.

Geneva Airport has warned travellers to arrive at the facility at least three hours before flights and asked members of the public only to come to the airport if absolutely necessary. Air traffic over the city will be restricted.

Police in the city have asked people to use public transport because of changed road conditions during the Pope's visit.

Around 200 soldiers with the Swiss army have been called to assist cantonal police in Geneva with security.

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